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Recursive directory listing in DOS
...ptions offered by FINDSTR. You can also use the excellent unxutils, but it converts the output to UNIX by default, so you no longer get CR+LF; FINDSTR offers the best Windows option.
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Debugging automatic properties
Is there any way to set breakpoint on setter/getter in auto-implemented property?
5 Answers
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How to check if a string contains a substring in Bash
...independent (Bash only!)
For testing strings without care of case, simply convert each string to lower case:
stringContain() {
local _lc=${2,,}
[ -z "$1" ] || { [ -z "${_lc##*${1,,}*}" ] && [ -n "$2" ] ;} ;}
Check:
stringContain 'o "M3' 'echo "my string"' && echo yes || ...
How to create a GUID/UUID in Python
...t; x = uuid.UUID('{00010203-0405-0607-0809-0a0b0c0d0e0f}')
>>> # convert a UUID to a string of hex digits in standard form
>>> str(x)
'00010203-0405-0607-0809-0a0b0c0d0e0f'
>>> # get the raw 16 bytes of the UUID
>>> x.bytes
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\...
How to use subprocess popen Python
...s.popen is being replaced by subprocess.popen, I was wondering how would I convert
3 Answers
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Sending a message to nil in Objective-C
...sing a very contrived example. Let's say you have a method in Java which prints out all of the elements in an ArrayList:
void foo(ArrayList list)
{
for(int i = 0; i < list.size(); ++i){
System.out.println(list.get(i).toString());
}
}
Now, if you call that method like so: someOb...
Why do objects of the same class have access to each other's private data?
...t compile time. Only per-class control can be implemented that way.
Some hints of per-object control are present in protected access specification, which is why it even has its own dedicated chapter in the standard (11.5). But still any per-object features described there are rather rudimentary. Ag...
What are static factory methods?
...d providing direct access to database connections because they're resource intensive. So we use a static factory method getDbConnection that creates a connection if we're below the limit. Otherwise, it tries to provide a "spare" connection, failing with an exception if there are none.
public class...
How to remove items from a list while iterating?
...
list(somelist) will convert an iterable into a list. somelist[:] makes a copy of an object that supports slicing. So they don't necessarily do the same thing. In this case I want to make a copy of the somelistobject, so I use [:]
...
Check if a string is a date value
.../ You want to check again for !isNaN(parsedDate) here because Dates can be converted
// to numbers, but a failed Date parse will not.
if (isNaN(date) && !isNaN(parsedDate)) {
/* do your work */
}
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